a strange sound on my coilover please help!!

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Old 05-25-2010, 07:33 PM
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a strange sound on my coilover please help!!

i just installed my coilovers on sunday and i notice a knocking sound when i hit a small bump on the road . i don't know what makes it but its only from the rear left coilover only. i tried raising the coils, screwing the bolts tighter and adjusting the hardness and softness but the knocking is still there. if anybody knows this problem please help! i can't find a way to get rid of the sound. oh and its BC Racing BR-Type coilovers by the way.
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Old 05-25-2010, 07:35 PM
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I bet you hear the spring rotating in the lower mount
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Old 05-25-2010, 09:44 PM
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try to tighten the top shock bolt
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Old 05-25-2010, 09:56 PM
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Originally Posted by SWAT
try to tighten the top shock bolt
+1 to this
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Old 05-25-2010, 10:48 PM
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yeah the top shock bolt was loose on my front and it was making a clunking noise...easy fix
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Old 05-26-2010, 05:23 AM
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A friend of mine had a similar noise with the suspension on his EVO. Turns out the guy that installed his springs installed one upside down. Lol.
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Old 05-26-2010, 07:36 AM
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Originally Posted by STi-owns-evo
+1 to this
+2. I was at the track this past weekend and the MF'ers from a shop in SF didnt tighten the right rear top bolt and it came off. Luckily I only lost one session and $50 to fix.
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Old 05-26-2010, 09:53 PM
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Originally Posted by SWAT
try to tighten the top shock bolt
i tried that but the noise is still there. but i know that the shocks are not blown.
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Old 05-26-2010, 09:57 PM
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Originally Posted by domchao
i tried that but the noise is still there. but i know that the shocks are not blown.
how did you tighten it? impact gun? do u have the special wrench to hold the shock from rotating?
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Old 05-26-2010, 10:04 PM
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Originally Posted by SWAT
how did you tighten it? impact gun? do u have the special wrench to hold the shock from rotating?

well it wasn't rotating when i was tightening it. i just tightened all the bolts i see from the top to bottom with a wrench.
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Old 05-26-2010, 10:21 PM
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i tightened these bolts. pics is just an example.
http://www.swankmonkey.com/vw/jetta/.../top_bolt2.jpg

http://filebox.vt.edu/users/pgillett...kle%20Bolt.JPG
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Old 05-26-2010, 10:28 PM
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Originally Posted by domchao
well it wasn't rotating when i was tightening it. i just tightened all the bolts i see from the top to bottom with a wrench.
Isn't the nut recessed where you can only use a socket to get to it? Did you try tightening the right nut?
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Old 05-26-2010, 10:29 PM
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If you have Camber plates In the rear then you will need to tighten down the top bolt which Is a 17mm I think with an Impact gun, I have the same exact series BC coils and I had that problem, I tightened them down with a regular ratchet and It still made the noise. So I called BC and asked them what they do and they told me to use an Impact gun on the top bolt. Solved It for me.

I'm talking about the upper tower bolts, This only applies to you If you have rear camber plates. I'm not sure what regular top hats look like with these coils.
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Old 05-26-2010, 10:45 PM
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Originally Posted by STi-owns-evo
Isn't the nut recessed where you can only use a socket to get to it? Did you try tightening the right nut?
yeah i used a socket also.
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Old 05-26-2010, 10:47 PM
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Originally Posted by 07wrx4life
If you have Camber plates In the rear then you will need to tighten down the top bolt which Is a 17mm I think with an Impact gun, I have the same exact series BC coils and I had that problem, I tightened them down with a regular ratchet and It still made the noise. So I called BC and asked them what they do and they told me to use an Impact gun on the top bolt. Solved It for me.

I'm talking about the upper tower bolts, This only applies to you If you have rear camber plates. I'm not sure what regular top hats look like with these coils.
okay i'll try that.
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